Rosier, Keith
Current rating: 1449
Record: 4-7
| Grand Prix Seattle-Tacoma 2015 (legacy) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 644 | Peters, John (1449) | Won 2-0 | +171518 |
| 2legacy | 202 | Downey, Shane (1493) | Lost 0-2 | -181500 |
| 3legacy | 598 | Medeiros, Kevin (1684) | Lost 0-2 | -151485 |
| 4legacy | 843 | Muller, Charles (1483) | Lost 1-2 | -181467 |
| 5legacy | 768 | Jacox, Sean (1470) | Lost 0-2 | -181449 |
| average opponent: 1516record: 1-4 | new rating: 1449 | |||
| Grand Prix Orlando 2004 (Mirrodin block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 131 | Yu, Steve (1523) | Lost 0-2 | -181482 |
| 2block | 173 | Catherman, Kami (1482) | Won 2-0 | +181500 |
| 3block | 97 | Bruno, Dan (1501) | Won 2-0 | +181518 |
| 4block | 93 | Manowitz, Brian (1523) | Won 2-1 | +191537 |
| 5block | 65 | McGraw, Bryan (1620) | Lost 1-2 | -171520 |
| 6block | 94 | D'Angelo, Matthew (1480) | Lost 1-2 | -191501 |
| average opponent: 1522record: 3-3 | new rating: 1501 | |||